3 sentences

1. 他把婴孩放在膝上颠动。

   tā bǎ yīng​hái fàng zài xī shang diān dòng.

   He bounced the baby on his knee.

   Source: AI Challenger 2017

2. 这个小婴孩撕掉了一张十美元的钞票。

   zhè​ge xiǎo yīng​hái sī diào le yī zhāng shí měi​yuán de chāo​piào.

   The baby tore up a ten-dollar bill.

   Source: Tatoeba

3. 他曾经是一个婴孩，然后是一个小男孩。

   tā céng​jīng shì yī​ge yīng​hái, rán​hòu shì yī​ge xiǎo nán​hái.

   He was once a baby and then a little boy.

   Source: CCMatrix